Heater



May 1, 1928.

1,667,997 G. w. WHIPPS HEATER Filed Oct. 11. 1926 glwuzntoz Gmmewwu mpsPATENT OFFICE.

GEORGE W. WHIPPS, F HOPKINS, MINNESOTA;

HEATER.

Application filed October 11, 1926. Serial No. 140,910.

This invention relates to heating devices for motor vehicles and theprimary object is to provide a simple, practical and efficientattachment whereby the heat emanating from thecustomary muffler of theexhaust pipe may be conveniently utilized for heating the interior ofthe car. A further obj ect is to provide a heater which can be veryquickly and easilyinstalled, and which may be installed without firstremoving or chang ing the mufiler, or in any way altering or disfiguringthe car, except for the making of a hole in the floor board, throughwhich the heater pipe is projected from the heater shell proper. Furtherand more specific 0bjects will be disclosed in the course of thefollowing specification, reference being had to the accompanyingdrawing, in which:

Fig. 1 is a perspective view of the heater, before being secured inplace.

Fig. 2 is a central sectional elevation through the heater and alsoshowing parts of an automobile to which it is attached.

Fig. 3 is a front elevation of the heater shown in Fig. 1.

Referring to the drawing more particularly and by reference characters Adesignates the floor of a motor vehicle having a seat B, a muffler C,and the exhaust pipe D, which connects the muffler with'the exhaustmanifold of the engine (not shown) all being of common and well knownconstruction and arrangement. a

The heater consists primarily of a shell or sleeve 4, which surroundsthe mufiler C and extends, with its front end, forwardly thereof. Theshell is longitudinally split at its under side where ithas-twooverlapping edges 5, so that it may be opened to dro over the pipe D,after which it is moved bac over the Inufiler, as shownin Fig. 2.The'rear end of the shell 4 is tightened about the rear end of themufller shell, and is there secured by a clamping strap 6 having a bolt7. Similarly the forward portion of the shell 4 is provided with aclamping strap 8 having a bolt 9. One of the flanges 5 has a lip 10, forengagement with the adjoining flange, and thus prevents the forward endof the shell from being clamped by 89, to

less than a predetermined diameter. The normal front end diameter of theheater shell is greater than the normal rear di ameter, with a resultthat the shell is rearwardly tapered, and provides a rearwardly taperingannular passage between itself and the mufiler, and this passage isutilized for the heating of the air, by the mufiler body, as it passesto the car body.- I

The substantially cylindrical portion of the heater, forward of themufiier, isprovided with an'inclined deflector plate 11, which iselliptical, in plan, so to fit snugly in the embossed rim 12 of theshell. This plate is preferably made in two sections, secured togetheras at 13, so that it may be se cured over the pipe D without removing.the mufiler, and is ,of course provided with a central elliptic aperture14, to accommodate the pipe l). Directly above the plate 11 the heatershell at is provided with an. opening up through the floor A of the car.The up per end of the pipe 16 is provided with a damper '17, of anycommon and well known construction, for regulating the quantity of warmair into the car. f v

The lower end of the deflector plate 11 is horizontally cut, as at 18,so as to provide a segmental opening 19, through which the incoming orcold air passes. Y

The construction and method of installing the heater should now beclear. The use or operation may be briefly described, as follows: As thecar moves forward the cold air striking the deflector plate ll'isdirected downwardly and rearwardly to the opening 19, and from it isswept rearwardly and about the muffler by which it becomes heated. Itthen passes forwardly and up through the pipe 16 and damper 17 to theinterior of the car.

described my invention, what I claim to be new and desire to protect byLetters Patent is: i

. 1. A heater for a motor vehicle having an exhaust pipe and a muffieratthe rear endthereof, comprising a shell surrounding the muffler andextending forwardly thereof, an inclined deflector plate arranged withinthe forwardly extended portion of the heater shell and forn'iing withsaid shell a heating chamber, and having an air inlet at a rearwardpoint into said chamber, and a pipe connecting the shell with the floorof the car,

2. A heater for a'motor vehicle having an exhaust pipe and a muliler atthe rear end thereof, comprising a longitudinally split shell, aclamping band for securing the rear end of the shell about the rear end01'' the mufller, the shell being Wider toward its other end so as toform a tapering annular passage between itself and the body of themufiler, a deflector in said other end of the shell for directingincoming air into the lower end of the passage, and a pipe connectingthe upper part of the shell with the body of the vehicle.

3. A heater for a motor vehicle having an exhaust pipe and a mulller atthe rear end thereof, comprising a longitudinally split shell, aclan'iping band for securing one end of the shell about one end of themulller, the shell being wider toward its other end so as to form atapering annular passage between itself and the bod oi the mulllcr, adeflector in said other end of the shell for directing incoming air intothe lower end of the pars sage, a second clamping band about an intermediate portion oi the shell and being operative to assist in holdingthe deflector in place, and means for directing heated air from theshell into the vehicle.

4-. A. heater for a motor vehicle having an exhaust pipe and a mother atthe rear end thereof, comprising a longitudinally split shell, aclamping band for securing one end of the shell about one end of themulller, the shell being wider toward its other end so as to form atapering restricted passage between itself and the body of the mullier,a deflector in said other end of the shell for directing incoming airinto the lower end of the passage, a second clamping band for securingsaid deflector plate in the shell, and means for directing heated airfrom the shell into the vehicle, said shell having an elliptical grooveFor receiving the deflector plate.

5. A. heater for a motor vehicle having an exhaust pipe and a mutllcr atthe rear end thereoi, comprising a longitudinally split shell, aclamping band for securing the rear end of the shell about the rear endof the mufller, the shell being wider toward its other end so as to forma tapering annular passage between itself and the body of the mulller, adeflector in said other end of the shell for directing incoming air intothe lower end of the passage, and a pipe connecting the upper part ofthe shell with the body oi the vehicle, said deflector plate having anopening through which said incoming air may pass.

(3. A heater tor a motor vehicle having an exhaust pipe and a mulller atthe rear end thereof, said heater comprising a tapered shell the rearportion of which surrounds the mulller so as to form an annular heatingchamber thereabont, said shell extending beyond the forward end of saidmulllcr to form an air passage, a deflector member in the forward end ofthe shell for directing air into the lower portion of the passage, andmeans for delivering heated air from the air passage into the vehicle,said deflector member having a central aperture for receiving theexhaust pipe.

7. A heater for a motor vehicle having an exhaust. pipe and a muiller atthe rear end thereof, said heater comprising a tapered shell the rearportion oi which surrounds the mulller so as to form an annular heatingchamber there-about, said shell extending beyond the forward end of saidmother 10 lorm an air passage, a del'lector member in the forward end oithe shell for directing air into the lower portion ol the passage, andmeans for delivering heated air from the air passage into the vehicle,said deflector member being sectionally formed so as to facilitatesecurin it about the exhaust pipe.

8. A heater or the character described comprising a rearwardly taperingshell, the same being longitudinally split so as to be adjustable indiameter, a pair of clamping bands about the shell, an inclineddeflector plate, having a central opening, secured in the forward end oithe shell, a warm air delivering pipe extending from the shell, directlyabove the deflector plate, said dctleetor having an opening at its rearend for the introduction of cold air into the heater shell.

In testimony whereof I aflix my signature.

GEORGE W, WHTPPS.

